APA (7th ed.) Citation

Ladd, D. R. (1957). Cost data for the management of railroad passenger service. Harvard University, Graduate School of Business Administration, Division of Research.

Chicago Style (17th ed.) Citation

Ladd, Dwight R. Cost Data for the Management of Railroad Passenger Service. [Place of publication not identified]: Harvard University, Graduate School of Business Administration, Division of Research, 1957.

MLA (9th ed.) Citation

Ladd, Dwight R. Cost Data for the Management of Railroad Passenger Service. Harvard University, Graduate School of Business Administration, Division of Research, 1957.